The global economic recession and other factors have led to a decline in research on juvenile delinquency in all parts of the world. The volume and sophistication of the research is much higher in developed countries than in developing countries. Much research in all nations is funded by the government. Most developing nations lack reliable statistical information, and establishing reliable statistical systems is a high priority. They also need research on the factors that make informal systems of social control effective. In developed nations, research should examine why some programs fail despite their sound theoretical foundations. Research is also needed on the human qualities that account for some programs' effectiveness. Another issue that needs attention is the relationship among researchers, policymakers, and practitioners. Closer collaboration is needed if research results are to be implemented. International cooperation in research and the involvement of United Nations regional institutes would also be useful. 1 note.